328545635725 has 24 divisors (see below), whose sum is σ = 416114402688. Its totient is φ = 257213452800.

The previous prime is 328545635707. The next prime is 328545635729. The reversal of 328545635725 is 527536545823.

It is a happy number.

It is not a de Polignac number, because 328545635725 - 2⁷ = 328545635597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328545635729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18898237 + ... + 18915613.

It is an arithmetic number, because the mean of its divisors is an integer number (17338100112).

Almost surely, 2^328545635725 is an apocalyptic number.

It is an amenable number.

328545635725 is a deficient number, since it is larger than the sum of its proper divisors (87568766963).

328545635725 is a wasteful number, since it uses less digits than its factorization.

328545635725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33525 (or 33520 counting only the distinct ones).

The product of its digits is 30240000, while the sum is 55.

The spelling of 328545635725 in words is "three hundred twenty-eight billion, five hundred forty-five million, six hundred thirty-five thousand, seven hundred twenty-five".